Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction | Sciact - CRIS-система Института катализа

Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction Научная публикация

Журнал

Inorganic Chemistry Communications
ISSN: 1387-7003

Вых. Данные

Год: 2025, Том: 173, Номер статьи : 113863, Страниц : 10 DOI: 10.1016/j.inoche.2024.113863

Ключевые слова

Photocatalyst; Photocatalysis; TiO2; g-C3N4; Copper cocatalyst; CO2 reduction

Авторы

Kurenkova Anna Yu. ¹ , Saraev Andrey A. ^1,2 , Alekseev Roman F. ^1,3 , Zhurenok Angelina V. ¹ , Mishchenko Denis D. ^1,2 , Gerasimov Evgeny Yu. ¹ , Kozlova Ekaterina A. ¹

Организации

1	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5 prosp. Lavrent’eva, 630090 Novosibirsk, Russian Federation
2	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Nikol’skiy Ave. 1, 630559 Koltsovo, Russian Federation
3	Novosibirsk State University, Pirogova str. 1, 630090 Novosibirsk, Russian Federation

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

075-15-2022-263

CO2 utilization is an urgent task for sustainable development, and one of the promising approaches for CO2 conversion is photocatalysis. In this work, photocatalysts based on g-C3N4/TiO2 heterostructures and modified with copper were synthesized and studied in photocatalytic CO2 reduction under light irradiation (400 nm and simulated solar light). The photocatalysts were synthesized by a simple deposition method and characterized by a set of physicochemical methods. In-situ diffuse reflectance infrared Fourier transform spectroscopy was used to study processes over photocatalyst surface under light irradiation. The influence of the deposition order of components (CuOx and g-C3N4) to TiO2 on the structure and photocatalytic properties of samples was established. The highest activity was demonstrated by the photocatalyst prepared by the deposition of g-C3N4 on copper-modified TiO2. This photocatalyst g-C3N4/CuOx/TiO2 showed the highest total rate of electron consumed during CO2 reduction of 102 μmol h− 1 g− 1 under LED (λmax = 400 nm) and 8.1 μmol h− 1 g− 1 under simulated solar light irradiation (AM1.5G) which are 14 and 16 times higher than that TiO2 Evonik P25, respectively. The synergistic effect of TiO2 modification with g-C3N4 and CuOx for photocatalytic CO2 reduction in the solid–gas mode is demonstrated for the first time.

Kurenkova A.Y. , Saraev A.A. , Alekseev R.F. , Zhurenok A.V. , Mishchenko D.D. , Gerasimov E.Y. , Kozlova E.A.
Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction
Inorganic Chemistry Communications. 2025. V.173. 113863 :1-10. DOI: 10.1016/j.inoche.2024.113863 OpenAlex СКИФ ID

Поступила в редакцию:	6 сент. 2024 г.
Принята к публикации:	29 дек. 2024 г.
Опубликована online:	31 дек. 2024 г.
Опубликована в печати:	1 мар. 2025 г.

OpenAlex:	W4405962043
СКИФ ID:	3654

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